Electronic apparatus having finger authenticating function

Abstract

An electronic apparatus includes an authenticator configured to identify registered finger information that coincides with detected finger information by matching the detected finger information with the plurality of registered finger information in a predetermined order, an executor configured to execute a function corresponding to the registered finger information identified by the authenticator, a user identifier configured to identify the actual user among the plurality of registered users by acquiring user identification information representing the actual user or by performing a determination process configured to determine the actual user, and a controller configured to change the predetermined order according to the actual user identified by the user identifier.

What is claimed is: 
     
       1. An electronic apparatus configured to execute a plurality of functions, the electronic apparatus comprising:
 a memory storing a plurality of pieces of registered finger information respectively representing a plurality of features of a plurality of fingers of each of a plurality of registered users, each of the plurality of functions corresponding to one of the plurality of pieces of registered finger information; 
 a sensor that detects a feature of a finger of an actual user to generate finger information correspond to the detected feature; 
 a processor configured to implement stored instructions to execute a plurality of tasks, including:
 an authenticating task that identifies one piece of registered finger information, among the plurality of pieces of registered finger information, that coincides with the detected finger information by matching the detected finger information with the plurality of pieces of registered finger information in a predetermined order; 
 a function executing task that executes one of the plurality of functions corresponding to the one piece of registered finger information identified by the authenticating task; 
 an order changing task that changes the predetermined order according to a status of use of the electronic apparatus, 
 wherein the status of use includes one of the plurality of functions in use in the electronic apparatus, an operation mode in setting in the electronic apparatus, surrounding circumstance, and the actual user of the electronic apparatus. 
 
 
     
     
       2. The electronic apparatus according to  claim 1 , further comprising:
 a user identifying task that identifies the actual user among the plurality of registered users based on acquired user identification information representing the actual user, 
 wherein the order changing task uses the actual user identified by the user identifying task for the status of use. 
 
     
     
       3. The electronic apparatus according to  claim 2 , wherein the user identifying task identifies the actual user using the detected finger information as the user identification information. 
     
     
       4. The electronic apparatus according to  claim 2 , wherein the user identifying task acquires the user identification information by detecting a cell phone used by the actual user. 
     
     
       5. The electronic apparatus according to  claim 2 , wherein the acquired user identification information includes information of a face detected in image data generated by using the electronic apparatus. 
     
     
       6. The electronic apparatus according to  claim 2 , wherein the user identifying task acquires the user identification information from another apparatus that is communicable with the electronic apparatus. 
     
     
       7. The electronic apparatus according to  claim 1 , wherein the electronic apparatus is an optical apparatus. 
     
     
       8. The electronic apparatus according to  claim 7 , wherein the optical apparatus is an interchangeable lens or an imaging apparatus.